Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Circuit/System Description
The infotainment system has two WiFi antennas, one internal to the radio and one external, connected to the radio via coax cable. This diagnostic refers to the external Wireless Local Area Network (WLAN) or WiFi /Wireless Communication Antenna. The internal antenna is for in - vehicle WiFi connections. The external antenna is for outside of the vehicle WiFi connections and mainly used for OTA (Over The Air) updates as well as a backup to the internal antenna if too many devices are connected to the internal antenna at the same time. The Radio supplies 5 V through the coax cable to power the internal antenna amplifier.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.